| Chen Chunhua. 1998. A study on seawater apparent heavy metalcomplexation capacity in the Haikou Bay. Acta Oceanologica Sinica, (3):327－336 |
| A study on seawater apparent heavy metalcomplexation capacity in the Haikou Bay |
| A study on seawater apparent heavy metalcomplexation capacity in the Haikou Bay |
| Received:October 10, 1996 Revised:April 04, 1997 |
| DOI： |
| Key words:The Haikou Bay heavy metal AAC seawater |
| 中文关键词: The Haikou Bay heavy metal AAC seawater |
| 基金项目:This project was supported by the National Natural Foundation of China under contract No. 49466014. |
|
| Hits: 790 |
| Download times: 621 |
| Abstract: |
| Using semidifferential stripping technique combined with pre-equilibrium complexometric titration, the abnormal phenomena appeared in determining apparent complexation capacity (ACC) are discussed and the improved method for determining ACC is presented in the article.The accuracy of ACC measurement results is tested theoretitelly and experimentally.Based on determination of ACCCu, ACCPb and ACCCd, copper was selected for complexometric titration to determine ACC and the results are proved to be reasonable.ACCCu measured in the Haikou Bay surface water is in the range of 166.4-320.2 nmol/dm3, with the mean value of 240.9 nmol/dm3, the maximum value aramd domestic drainage outfall, and the values in other stations are comparatively homogenous.The condition formation constant is in the range of 3.46×107-4.76×108, and the mean value is 1.7×108.Based on the 1:1 comlexing model of copper-natural organic ligand and the toxic concentration limit to marine organisms, seawater self-purification capacity in the Haikou Bay is calculated to be 7.43 μg/dm3. |
| 中文摘要: |
| Using semidifferential stripping technique combined with pre-equilibrium complexometric titration, the abnormal phenomena appeared in determining apparent complexation capacity (ACC) are discussed and the improved method for determining ACC is presented in the article.The accuracy of ACC measurement results is tested theoretitelly and experimentally.Based on determination of ACCCu, ACCPb and ACCCd, copper was selected for complexometric titration to determine ACC and the results are proved to be reasonable.ACCCu measured in the Haikou Bay surface water is in the range of 166.4-320.2 nmol/dm3, with the mean value of 240.9 nmol/dm3, the maximum value aramd domestic drainage outfall, and the values in other stations are comparatively homogenous.The condition formation constant is in the range of 3.46×107-4.76×108, and the mean value is 1.7×108.Based on the 1:1 comlexing model of copper-natural organic ligand and the toxic concentration limit to marine organisms, seawater self-purification capacity in the Haikou Bay is calculated to be 7.43 μg/dm3. |
|
HTML
View Full Text
View/Add Comment Download reader |
| Close |
